Car-bolster side bearing.



PATE'NTED SEPT. 18, 1906. A. H. FETTBRS. UAR BOLSTER SIDE BEARING.APPLICATION IILBD Nome. 19o5.

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Q A l? i Q C it i ,T Ha 2 7 5 M Specification of Letters Patent.

Patented Sept. 18, 1906.

Apnlicatiou filed November 8,1905. Serial No 286,358.

To (all whom it may concern.- Be it known that i, Anrnor. l-l. Fnrr'sns,a citizen of the United. States, residing Omaha, in the county ofDouglas and State bolster, and has for its object to provideaseliF-centcring side hearing of simple construction and movable in,"all directions of motion. of the car. -hody relatively to the truck. 1 A

The invention consists in features of novelty, hereinafter described andclaimed, reference being had to the accompanying drawings, forming partof this specification, whereon Figure 1 is a side elevation of acar-body holster and combined truck-bolster having my improved sidebearings; Fig. 2, a crosssection through the holsters on line 2 2 inFig. i Fig. 3, asirnilar view throughthe boisters and one of thehearings on Zine 3 8 in Fig. 1; Fig. 4, nvei edplan of the socket andease-plate thereol' rorining part of the side hearing: and liked to theunder side of the hcdy-bo (broken away;) Fig. 5, a modification orsontal section through l e in Fig. 3, show face therefor on the rurawcyfl seen in too plan.

Like letters r. numer ls oi reiercnce docant-s ailthe resents ahodydioister tilted to the the car-body and centrally pivot-e l.

- true oolster c in the ".isuai wellmanner.

resents the side pectivcly,

uhe under side oi ts outer portion 7 spherical shaped and described lroma center :13, which is aimed to the center of the ball 4 and to thelongitudinal center line of the shank 5, the radius of the sphericalportion 7 being somewhat greater than that of its vibration from theball 4 within the socket 3.

in the normal position of the ball 4 within the socket 3 the shank 5depends vertically therefrom, with the central point of the sphericalportion 7 of the head 6 clear of the bearing-surface 8, which is formedtherefor on the truck-bolster c.

In operation on the lurching of the carbody and the angular movement ofthe bodybolster a about its central pivot into the position indicated bydotted lines in Fig. 3 consequent upon the truck-bolster traveling rounda curve of the rail-track the spherical portion 7 of the side bearingdis lowered into contact with. and rolls along the bearing-surface 8 ofthe truck-bolster 0 into the position indicated by the dotted lines,whereby owing to the radius of the spherical surface 7 being greaterthan that of its vibration with the head 6 from the socket 3 thebody-bolster a, with the car-body, is somewhat lifted, so that when thetruck-bolster 0 leaves the curve on the rail-track and returns to itsoriginal poiition the side bearing (2 is returned to its normal ormiddle position by gravity, due to the weight of the car-body andbolster a, or, in other words, by my improved construction the sidehearing d is rendered self-centering in whatever position the car-bodybolster a may move relatively to-the car-track.

The socket 3, as shown in Fi s. 1, 2, 3,and 4, preferably inte ral witht e base-plate i, the ball 4 bein ield therein in the dependent position0 its shank 5 by closing the edge portion of the sec .et 3, surroundingits mouth or opening against the hall t below the center of the latter;but, if desired, the socket 3, with its base-plate 1 may be made inhalves, respectively flanged and secured mo What I claim as myinvention, and desire to secure by Letters Patent, is

In a car-h01ster side hearing, the combination With the body-holster andthe truckholstcr, of a socket fixed to the under side of thebody-holster, a hall pivotali v connected to the socket and havingashenk, the said bail being rad ially movable Within the socket, and ahead on the free end of the shank, the said head having its outerportion spherical and described from (1 center ahned to the center ofthe he, and to the longitudinal eenr senses ter line of the shank, forhearing on the truckbolster, the radius of the said'portion beinggreater than that of its Vibration from the said bali and socket,substantieiiy' as described and for the purpose set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

ARTHUR H. FETTERS.

Witnesses:

EDMUND B. DsILEY, ANDREW E. WEEKUI.

